1. Department of Geosciences and Geography, University of Helsinki, P.O. Box 64, 00014 Helsinki, Finland
2. Institute for Atmospheric and Earth System Research, University of Helsinki, P.O. Box 4, 00014 Helsinki, Finland
3. Wangari Maathai Institute for Environmental and Peace Studies, University of Nairobi, Nairobi P.O. Box 29053-00625, Kenya
4. Department of Geospatial and Space Technology, University of Nairobi, Nairobi P.O. Box 30197-00100, Kenya
5. Helsinki Institute of Sustainability Science, University of Helsinki, P.O. Box 4, 00014 Helsinki, Finland
6. Helsinki Institute of Urban and Regional Studies, University of Helsinki, P.O. Box 4, 00014 Helsinki, Finland
7. Institute of Geomatics, GIS and Remote Sensing, Dedan Kimathi University of Technology, Private Bag, Dedan Kimathi, Nyeri P.O. Box 10143-10100, Kenya
8. Finnish Meteorological Institute, P.O. Box 503, 00101 Helsinki, Finland